Furnace.



A. a. SCHERERf FURNACE.

APPLICATION FILED JAN.14,1916.

2 SHEETS-SHEET l.

Q6 2Q 2 I 62 lrulQlftorz A G. SCHERER.

FURNACE.

APPLICATION FILED 1AN.14, 191s.

Patented May 1, 1917.

2 SHEETS-SHEET 2- Tr'uJ e nfor 9 wart 6r. 6 c fiQr @r y ,1 M X Alter/1 e9 6 ALBERT G. scnnnna, or GHICAGQ, ILLInoIs, ASSIGNOR To EXGELSIOR STEELFURNACE COMPANY, or CHICAGO, ILLINOIS, A conrona'TIon or ILLINOIS.

' summonneeaeee.

Specification of Letters Patent.

Patented may a, ram.

Application filed January 14, 1916. Serial No. 72,029.

of the city of Chicago, county of Cook, and

State of Illinois, have invented certain new and useful Improvements in Furnaces, of which the following is a specification.

My invention relates to the-type of heating apparatus known as pipeless furnace,

wherein the register opening is divided and the separate parts. connect respectively with the pipes supplying the heater'with air and with the heated air discharge channels so that a draft of air is conducted through a casing or shell surrounding the furnace body for the purpose of heating the same to a proper temperature and-then discharging it through a register in the floor of the room or other apartment immediately below which the apparatus is preferably installed.

The principalobjectofmy invention is to secure a material economy, both in the size of the furnace and} in the materials necessary for manufacturing the same. Heretofore, so far as I am aware, furnaces of this type have all had an outer'casing, between which and the usual casing the air supply was conducted the bottom of the.

furnace, entirely surrounding theusual furnace casing. This construction has resulted in an extremely bulky structure, dificult to install, and expensive to make. With my resent design I believe I have secured a urnace the efliciency of which is in no way impaired or'lessened, which requlres hardly more, room for installation than the single casing furnace, and requires a materially less amount of metal to fabricate. Another object is the provision of suitable means whereby the apparatus may be adjustedyin height to accommodate itself to cellars or ,A further 0 ject of my invention" is to rovide a furnace with suitable draft con uits whereby anfleflicient circulation of air is obtained therein forv the purpose of heating the same. A further object is the provision. of a unitary heating apparatus that is of fective in its operation, and is simply and inexpensively constructed so that it is easy to operate and does not materially add to the cost to the user.

I prefer to accomplish the divers objects of my invention by the means and in the manner hereinafter fully described and. as more particularly pointed out in the claims, reference being had to the accompanying drawings forming a part of this specification and wherein similar reference charact'ers are employed to indicate the same parts throughout the various views.

In the drawings,

Figure 1 is a view, the right-hand portion whereof is a vertical front elevation of my improved heating apparatus, and the lefthand portion whereof is a transverse vertical section thereof taken through the outer casing and cold air conduit.

Fig. 2 is a transverse horizontal section taken on line 2-2, of Fig. 1, looking in'the type, comprising the usual fire dome, 10, fire pot, 11, and ash pit, 12, superimposed'the one upon the other and provided with the usual openings for charging the fuel, the removal of ashes and the regulation and'admission of draft thereto. Upon the top of the fire dome, 10, is disposed a cylindrical or drumlike radiator, 13, .into which the heated products of combustion pass from sald dome and outjrom which they are discharged to the chimney or smoke flue (not shown). Surrounding the heater: is a shell or 'c'asmg of substantially cylindricalshape the top of which is divided into a central compartment for the discharge of hot air and an outer chamber concentric with the central chamber for the admissionof air to the heating surfaces. Thiscasing extends up toward the register disposed in the floor of the room, and both of saidcham'bers have course, being understood that the sleeve, 22, is of either a slightly less or a greater d1- their walls telescopically engaging the lower I end portions of a double-wall register box depending from the register. This cas ng or shell preferably comprises a cylindrical basal section, 14, a similarly shaped interi the lower or body portions of the casing.

- The floor, 19, of the room or other apartment it is desired to heat is provided with an opening, of substantially, rectangular shape and surrounded by headers, 20, for the purposesto be hereinafter described. The register, 21, is of any convenient construction, preferably rectangular in shape so as to fit the opening formed by the headers and the furnace 1s not 1n operation and in order is perforated or grilled to permit the passage of air therethrough. The reg1ster box preferably comprises an inner sleeve, 22, secured centrally to the under surface of the register, 21, and depends therefrom a distance suflicient to permit of a sliding en gagement or telescopic fit of the same w1th the upper portion, 18, of'the casing, 1t, of

ameter than the said member, 18, so as to permit of the aforesaid adjustment and fit. The outer wall of the box is disposed a distance away from-the inner wall and provides a concentric chamber around the same, down through which, the .cold air from the room will pass- The lower portion of the basal member,

. 14, of the casing is provided with air open ings, 22, through which the cooler air, which gravitates' through the register is admitted into the casing and is there heated so that it ascends and circulates, around the furnace and its radiator and discharges through the central portion of the register, 21.

- Mounted vertically upon the exterior ofthe casing are suitable elongated conduits or cold air lines, 23, the lower portions whereof surround the openings, 22, above mentioned and the upper portions whereof are Inclined inwardly as at 24, .where they are secured to the top section, 25. The con.- duits, 23, are substantially U-shape in crosssection and consist of sides, 32, connected by a wall, 33. The free edges of the walls are 1 adapted to enter. channels, 34, formed by suitably bending. a plate, 35, which is secured to the furnace by. rivets or in any other suitable manner. The tops ofthe conduits, 23, are preferably riveted at 36 to the furnace casing, while thehattoms of s d conduits are secured to the casing by straps,

the casing and telescopically fits the lower cylindrical end, 29,. of the outer wall, 30, of the register box. This construction permits the cold air which gravitates to the floor of the room or apartment above the furnace to pass downwardly through the. outer concentric chamber or" passage, through the openings, 26, into the conduits, 23, and thence throuigii openings, 22, into the. interior of the mace casing, where, upon being heated, it ascends around the furnace body anddischarges through-the central chamber of the furnace casing; 7

As heretofore mentioned, the register, 21, is

adapted to be moved out of the way when to do this I prefer to form rabbets, 41, upon the upper inner corners of the headers, 20. Suitable filler strips, 42, of less height than the distance from the bottomof the rabbet to the plane of the floor, are movably mounted upon the headers and fitted into the rabbets by means of hinges, 43.- The register,

21 is placed upon the upper edges of the filler strips, 42, when the furnace is in operation, but when it is desired to shut down the furnace the register is raised and the filler strips, 42, dropped sothat the rabbet is free to support the register upon its lowsaid conduits with the casing, I have provided' suitablehand holes,-45, in the inclined upper walls of 'said conduit and the same are closed by a door or plate, 43, removably fitted over said opening.

'What I claimas new is 1. Heatingapparatus comprising a heat- .ing element, a casing surrounding the same and spaced therefrom, the upper portion-of said casing being tapered inwardly and extended *upwardly to provide a conduit for the air heated by said heating element, an auxiliar shell surrounding the tapered and upward y extending portion of said casing and disposed concentrically therewith, a pair of channeled members disposed longitudiermost surface. After this has been done, 7 a section of flooring or a suitable door, 44,

,nally of said casing, and a U-shape conduit se member mounted in the channels of said members and establishing communication between the interior of said casing and shell 2. Heating apparatus comprising a heating element, a casing surrounding the same and spaced therefrom, the upper portion of said casing being tapered inwardly and extended upwardly to provide a conduit for the air heated by said heating element, an auxiliary shell surrounding the tapered and upwardly extending portion of said casing and disposed concentrically therewith, a pair of channeled members disposed longitudinally of said casing, a U-shape conduit member mounted in the channels of said members and establishing communication between the interior of said casing andshell, and aregister 'box formed with inner and outer walls adapted to respectively telescopically engagev the upwardly extending portions of said casing and shell.

3. Heating apparatus comprising a heating element, a casing surrounding the same and spaced therefrom, the upper portion" of said casing being tapered inwardly and extending upwardly to provide a conduit for the air heated by said heating element, an auxiliary shell surrounding the tapered and upwardly extending portion of saidcasing and disposed concentrically therewith, a pair of channeled members disposed longitudinally of said casing, a U-shape conduit member mounted in the channels of said members and establishing communication between the interior of said casing and shell, and a register having depending therefrom a register box formed with inner and outer walls adapted to respectively tele scopically engage the upwardly extending portions of said casing and shell.

- 4. Heating apparatus comprising a heat ing element, a casing surrounding the same and spaced therefrom, the upper portion of said casing being tapered inwardly and extending upwardly to provide a conduit for the air heated by said heating element, an auxiliary shell surrounding thetapered and upwardly extending portion of said casing and disposed concentrically therewith, a

pair of members having longitudinal grooves therein and disposed verticallyupon connecting with said shell, means for sup porting ,said register comprising headers each provided with a rabbet upon its upper inner edge a hinged strip disposed in each of said rabbets and adapted to swin out of and below the same, said register eing normally supported .by said strips and adapted to rest on said-rabbets with said 7 strips in lowered position, and a cover above said register. V

6. A heating unit, a shell inclosing same, a. register communicating with said shell,

and means supporting said register comprising a frame peripherally rabbeted upon-its mner edge, and members removably disposed in said rabbets upon which said register rests.

Signed at Chicago, county 01 Cook and State of Il ois, this 28th day of Dec., 1915.

ALBERT Gr. SCHERER. Witnesses:

W M; HAROLD \EICN, E. LUNDY, J r. 

